AlphaBass

I ended up giving up on the Klipsch amp that came with the subwoofer and replacing it with a Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier purchase from Parts Express. The new amp sounds good. The only problem has been that the sensitivity for the amp’s auto-off function is too low and it turns off if the volume of the receiver isn’t loud enough. I have to turn up the receiver to movie theater volume to get the sub amp to turn on and that is often too loud for regular viewing (especially if someone in the house is sleeping).

@Chicago42 unfortunately, I have not replaced the caps yet. In ngen33r's response, he mentioned that the glue doesn't need to all be removed (maybe it doesn't have the same issue of becoming conductive?), but there is a ton of the glue that is there, so it's going to take a bit of work to do the repair. I'll post when I'm done whether it worked or not.

Hello @ngen33r! Thank you for sharing so much great information about these repairs. My R-115SW started intermittently cutting out more and more frequently, so I watched several of your repair videos and prepared to order a new resister and caps from DigiKey for a full recap. Imagine my surprise when I opened up the sub and found that it already had a giant 10W resister from the factory! I don't see any evidence of overheating on the resister or any of the caps. Any suggestions on what could cause it to intermittently cut out (complete loss of volume) for a few seconds at a time and then go back to regular volume? The cut-outs seem to have gotten more and more frequent to the point that it is no longer usable. I have not observed any distortion or clipping or other symptoms. My first choice would be to sent it to you for repair, but it looks like you must be backed up enough that you are not accepting repairs, so I'm hoping you can point me in the right direction to do it myself. (I do have electronics repair background and tools, so the desoldering and resoldering is no problem.)